Cisco Catalyst 4500 Series Administration Guide

27-6
Software Configuration Guide—Release IOS XE 3 6.0E and IOS 15.2(2)E
OL_28731-01
Chapter 27 Configuring IGMP Snooping and Filtering, and MVR
Configuring IGMP Snooping
Enabling IGMP Snooping Globally
To enable IGMP snooping globally, perform this task:
This example shows how to enable IGMP snooping globally and verify the configuration:
Switch# configure terminal
Switch(config)# ip igmp snooping
Switch(config)# end
Switch# show ip igmp snooping
Global IGMP Snooping configuration:
-----------------------------------
IGMP snooping : Enabled
IGMPv3 snooping : Enabled
Report suppression : Enabled
TCN solicit query : Disabled
TCN flood query count : 2
Vlan 1:
--------
IGMP snooping : Enabled
IGMPv2 immediate leave : Disabled
Explicit host tracking : Enabled
Multicast router learning mode : pim-dvmrp
CGMP interoperability mode : IGMP_ONLY
Vlan 2:
--------
IGMP snooping : Enabled
IGMPv2 immediate leave : Disabled
Explicit host tracking : Enabled
Multicast router learning mode : pim-dvmrp
CGMP interoperability mode : IGMP_ONLY
Enabling IGMP Snooping on a VLAN
To enable IGMP snooping on a VLAN, perform this task:
Command Purpose
Step 1
Switch# configure terminal
Enters global configuration mode.
Step 2
Switch(config)# [no] ip igmp snooping
Enables IGMP snooping.
Use the no keyword to disable IGMP snooping.
Step 3
Switch(config)# end
Exits configuration mode.
Step 4
Switch# show ip igmp snooping | include
Verifies the configuration.
Command Purpose
Step 1
Switch(config)# [no] ip igmp snooping vlan vlan_ID
Enables IGMP snooping.
Use the no keyword to disable IGMP snooping.
Step 2
Switch(config)# end
Exits configuration mode.
Step 3
Switch# show ip igmp snooping vlan vlan_ID
Verifies the configuration.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E